ISS is now part of Test4Less
WELCOME TO TEST4LESS
ISS is moving to Test4Less
We’re bringing ISS and Test4Less together, giving you access to a wider range of test equipment, expert support and everything you need in one place.
You're in the right place
Welcome to Test4Less.
✅ Same team • Same products • One website
If you previously purchased your test equipment through ISS, you’re in the right place. ISS is becoming part of Test4Less, bringing our products, expertise and service together under one roof.
This isn’t an unrelated retailer and it isn’t a redirect gone wrong — it’s the same people, the same products and the same technical know-how, now trading as Test4Less.
Key date
ISS stops taking orders 30 Sept 2026.
Orders placed with ISS before this date will be fulfilled as normal. Nothing you already have on order changes.
Your next order
Order on Test4Less.
Create a Test4Less account in under a minute and you’re ready to go — your ISS login won’t transfer.
The move
What's changing?
Four things worth knowing before your next order.
01
One website.
Your test equipment will now be available through Test4Less, a single place to browse, compare and order.
02
More choice.
Access a much wider range of test and measurement equipment from all the leading manufacturers.
03
The support you know.
You’ll still have knowledgeable people on the end of the phone for products, orders and technical questions.
04
A better online experience
Shop, compare specifications and find exactly the equipment you need on the Test4Less website.
What do I need to do?
Here’s exactly where you stand on accounts, orders, quotes and credit. No guesswork.
Already have an ISS account?
Your ISS website login won’t transfer automatically. Simply create a Test4Less account when you’re ready to place your next order — it takes under a minute.
Placing a new order
All new orders should be placed through Test4Less from now on. The ISS website stops accepting new orders on 30 September 2026.
Open ISS orders
Any order already placed with ISS will be fulfilled as normal by the ISS team. Nothing you need to do, you’ll be kept updated as usual.
Invoices & order history
Your ISS invoices and order history remain available. Email the team with your ISS order number and we’ll send copies over.
Need help finding the right product?
If you previously bought from ISS and aren’t sure what the equivalent product is on Test4Less, our team can help point you in the right direction.
Your ISS contacts are still here
You’ll still be dealing with the same knowledgeable team. If you need help with a previous ISS order, product advice or the move to Test4Less, just get in touch.
Key date: the ISS website stops accepting new orders on 30 September 2026. Orders placed before then will be fulfilled as normal.
Shop by category
Your usual equipment.
Every major ISS category has a home on Test4Less. Start where you always did.
01 / Electrical Testing
Electrical Testing.
Multifunction testers, insulation & continuity testers, voltage indicators.
02 / PAT Testing
PAT Testing.
Portable appliance testers, labels, software and accessories.
03 / Thermal Imaging
Thermal Imaging.
Thermal cameras and infrared thermometers for survey and diagnostics.
04 / Environmental Testing
Environmental Testing.
Air quality, humidity, sound, light and airflow measurement.
05 / Gas & Flue Analysis
Gas & Flue Analysis.
Flue gas analysers, gas leak detectors, manometers and probes.
06 / Calibration Equipment
Calibration Services.
Calibration, including UKAS services. Get your equipment calibrated in just three days.
A little about Test4Less
Test4Less is a UK specialist supplier of test and measurement equipment for electrical, HVAC, refrigeration, gas and environmental professionals.
We stock the leading manufacturers, hold real stock for next-working-day delivery, and our team uses this kit day in, day out — so if you’re unsure which instrument fits the job, ask us before you buy.
Next-day delivery
On stocked items ordered before cut-off.
Genuine UK stock
Full manufacturer warranty and support.
Calibration services
Certificates and recalibration handled for you.
Brands we stock
ISS customer FAQs
The questions we’re hearing most about the move.
Why is ISS moving to Test4Less?
Bringing ISS and Test4Less together means one team, one website and a far wider range of test and measurement equipment — with the same people and expertise behind it.
Can I still order from the ISS website?
Can I use my existing ISS login?
What happens to my existing ISS orders?
Can I still access previous invoices?
Can I still buy the same products?
Who should I contact about an ISS order?
How do I place a new order with Test4Less?
Need a hand with the move?
If you have a question about an existing ISS order, your account, or finding a product on Test4Less, our team is here to help.
Monday to Friday, 8:30am – 5:00pm. Please have your ISS account or order number to hand.